fcvtn2

Floating-Point Convert Narrow High (Single to Half)

FCVTN2 <Vd>.8H, <Vn>.4S

Converts Single-precision to Half-precision (Top).

Details

The Floating-Point Convert Narrow High instruction converts Single-precision to Half-precision (Top).

Pseudocode Operation

Vd ← convert(Vn)

Example

FCVTN2 v0.4s.8H, v1.4s.4S

Encoding

Binary Layout
01101110
001
00001
01101
0
Vn
Vd
 
Format NEON FP16
Opcode 0x6E216800
Extension FEAT_FP16 (NEON)

Operands

  • Vd
    Destination SIMD/FP vector register
  • Vn
    First source SIMD/FP vector register